Capacitors enhance performance

Myrtle Beach, S.C.  Offering high current, high Q and low equivalent series resistance (ESR), AVX Corp. has introduced a new series of porcelain and ceramic dielectric multilayer capacitor (MLC) chips with a new internal construction that allows for as much as 40 percent lower ESR than in previous versions.

Designated the SQ Series, the chips are suitable for RF/microwave applications ranging from 10 MHz to 4.2 GHz. Available in 1210 and 0605 sizes with voltages up to 500 Vdc, the new series is said to offer superior stability under the stresses of changing voltage, frequency, time and temperature.

"The new design has a fine-grained, high density, high purity dielectric material to keep out moisture, and includes heavy internal palladium electrodes," said Larry Eisenberger, AVX product manager, in a statement. "This makes the SQ series ideal for applications with high current carrying capabilities and high quality factors. The capacitors also offer very low ESR and very high series resonance."

Applications include microwave RF/IF amplifiers, mixers, oscillators, low noise amplifiers, and filter networks, as well as medical devices such as MRI coils.

Pricing ranges from $0.10 to $0.75 in large quantities. Delivery is from stock to six weeks.